This Yamaha 1LX-22151-00-00 SEAL,GUARD is used on these models and components:
1986 YZ125S SWING ARM
1986 YZ250S SWING ARM
1986 YZ490S SWING ARM
1987 MOTOCROSS – YZ125T SWING ARM
1987 MOTOCROSS – YZ250T SWING ARM
1987 MOTOCROSS – YZ490T SWING ARM
1988 MOTOCROSS – YZ125U SWING ARM
1988 MOTOCROSS – YZ250U SWING ARM
1988 MOTOCROSS – YZ490U SWING ARM
1989 MOTOCROSS – YZ490W SWING ARM
1990 MOTOCROSS – YZ490A SWING ARM